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IDM Mining Ltd. (TSX:IDM) ("IDM" or the "Company") is pleased to announce that it has closed the second tranche of its non-brokered private placement announced on May 19, 2015 and June 16, 2015 (the "Offering") for gross proceeds of $642,928.

The closing of the second tranche of the Offering consisted of 640,000 common share units ("Common Share Units") at a price of $0.10 per Common Share Unit and 4,135,200 flow-through share units ("Flow-Through Units") issued at a price of $0.14 per Flow-Through Unit, for aggregate gross proceeds of $642,928. The Company anticipates closing a third tranche to raise additional aggregate gross proceeds of up to $1,140,297, including the committed investment from Lake Shore Gold Corp, (2,500,000 Common Share Units) and Delbrook Capital Advisors Inc. (the remaining 3,007,657 Flow-Through Units of the committed 7,142,857 Flow-Through Units), if shareholder approval is obtained at the meeting of shareholders on July 28, 2015 (refer to IDM's new release dated June 16, 2015).

Each Common Share Unit consists of one common share of the Company (a "Common Share") and one-half of one non-transferable share purchase warrant, with each such whole warrant entitling the holder thereof to acquire one Common Share at a price of $0.15 for a period of twenty-four (24) months.

Each Flow-Through Unit consists of one flow-through common share and one-half of non-transferable share purchase warrant, with each whole warrant entitling the holder thereof to acquire one non flow-through Common Share at a price of $0.18 for a period of twenty-four (24) months.

Certain directors and officers of the Company, being Robert McLeod, Michael McPhie, Andrew Farncomb and Susan Neale participated in the Offering by acquiring an aggregate of 440,000 Common Units (or an aggregate of 660,000 shares, assuming exercise of their warrants) for an aggregate subscription of $44,000. The shares comprising such Common Units (excluding shares issuable under the warrants) represent approximately 0.8% of the Company's currently issued and outstanding shares on a non-diluted basis (or approximately 1.2%, assuming exercise of their warrants). Such participation is considered to be a "related party transaction" as defined under Multilateral Instrument 61-101 ("MI-61-101"). Such participation is exempt from the formal valuation and minority shareholder approval requirements of MI 61-101, as neither the fair market value of units issued to, nor the consideration paid by, such directors or officers will exceed 25% of the Company's market capitalization. Pursuant to MI 61-101, the Company did not file a material change report more than 21 days before the expected closing of the Offering as the details of the participation therein by related parties of the Company were not settled until shortly prior to closing and the Company wished to close on an expedited basis for sound business reasons.

No finders' fees were paid in connection with the second tranche of the Offering.

Net proceeds from the Offering will be used for continued permitting, engineering and development activities on its Red Mountain Property, located near Stewart BC and for working capital purposes.

ABOUT RED MOUNTAIN

IDM Mining is currently earning an option to acquire a 100% interest in the 17,125 hectare Red Mountain property, located 15 kilometers northeast of Stewart, BC. Numerous precious and base metal targets have been identified by IDM and previous operators over a 15 km by 4 km trend of strong alteration and mineralized prospects. Since discovery in 1989, in excess of $40 million has been spent on the Project including a production sized underground ramp.

IDM announced positive results from a NI 43-101 PEA and revised Resource Estimate completed by JDS Energy & Mining Ltd. for Red Mountain (refer to IDM's news release dated July 23, 2014 and the technical report entitled "Red Mountain Gold Project" dated September 3, 2014 which is available on SEDAR and the Company's website).

The PEA is preliminary in nature, it includes inferred mineral resources that are considered too speculative geologically to have the economic considerations applied to them that would enable them to be categorized as mineral reserves, and there is no certainty that the preliminary economic assessment will be realized. Robert McLeod, P.Geo, President and CEO of IDM Mining Ltd. and a Qualified Person as defined by NI 43-101, has reviewed and approved the technical information contained within this release.

ABOUT IDM MINING LTD.

IDM Mining Ltd. is a mineral exploration company (TSX:IDM) based in Vancouver, BC, Canada. The Company's current exploration activities are focused on precious metals in British Columbia. Further information can be found on the Company's website at www.IDMmining.com.

ON BEHALF OF THE BOARD of IDM Mining Ltd.

Robert McLeod, President, CEO and Director

Forward-Looking Statements: Some statements in this news release contain forward-looking information or forward-looking statements for the purposes of applicable securities laws. These statements include, among others, statements with respect to the Offering, use of proceeds from the Offering, proposed exploration and development activities and their timing, resource estimates and potential mineralization, the PEA, including estimates of capital and sustaining costs, anticipated internal rates of return, mine production, estimated recoveries, mine life, estimated payback period and net present values, and other plans and objectives of IDM. These statements address future events and conditions and, as such, involve known and unknown risks, uncertainties and other factors, which may cause the actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the statements. Such factors include, among others and in addition to those described elsewhere in this release, receipt of regulatory and shareholder approvals, timing and success of future exploration and development activities, exploration and development risks, delays in obtaining or inability to obtain required government or other regulatory approvals, permits or financing, the risk of unexpected variations in mineral resources, grade or recovery rates, of failure of plant, equipment or processes to operate as anticipated, of accidents, labor disputes, and unanticipated delays in completing other development activities, the risk that estimated costs will be higher than anticipated and the risk that the proposed mine plan and recoveries will not be achieved, equipment breakdowns and bad weather, the timing and success of future exploration and development activities, exploration and development risks, mineral resources are not as estimated, title matters, third party consents, operating hazards, metal prices, political and economic factors, competitive factors and general economic conditions.

In making the forward-looking statements, the Company has applied several material assumptions including, but not limited to, the assumptions that: required shareholder and regulatory approvals, permits and financing will be obtained; the Offering will be completed as planned; the proposed exploration and development will proceed as planned; with respect to mineral resource estimates, the key assumptions and parameters on which such estimates are based; that the proposed mine plan and recoveries will be achieved, that capital costs and sustaining costs will be as estimated, and that no unforeseen accident, fire, ground instability, flooding, labor disruption, equipment failure, metallurgical, environmental or other events that could delay or increase the cost of development will occur, and market fundamentals will result in sustained metals and minerals prices. The Company expressly disclaims any intention or obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise except as otherwise required by applicable securities legislation.